{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-110847 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-110847 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-110847 is a high-severity cross-site scripting vulnerability in n8n-io n8n, published on 14 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-110847 and fix it if it is affected.\n\nWhat it is: CVE-2026-110847 is a high-severity cross-site scripting vulnerability in n8n-io n8n, published on 14 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-110847 in the wild and no public exploit code.\n\nAffected product: n8n-io n8n. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-110847/ (Markdown: https://insights.sbomify.com/CVE-2026-110847/index.md)","id":"CVE-2026-110847","markdown":"https://insights.sbomify.com/CVE-2026-110847/index.md","name":"CVE-2026-110847","record":{"aliases":["GHSA-q529-cjvg-c6m6","GHSA-x5cw-hm7v-q7mj"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["account_takeover","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"n8n workflow automation","requires_auth":"low_privilege","summary":"Attackers can inject malicious scripts via the Chat Trigger customCss parameter, potentially hijacking sessions of signed-in users on the n8n instance.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"n8n before 1.123.83, 2.x before 2.41.4, and 2.42.x before 2.42.1 contains a stored cross-site scripting vulnerability in the Chat Trigger hosted-chat page, where insufficiently sanitised customCss values are interpolated into the page as markup. Workflow authors can publish a chat without n8n user authentication whose payload executes on the instance origin, acting on the sessions of signed-in visitors.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"n8n before 1.123.83, 2.41.4, and 2.42.1 Stored XSS via Chat Trigger customCss Parameter","id":"CVE-2026-110847","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"n8n before 1.123.83, 2.41.4, and 2.42.1 Prototype Pollution via AI Workflow Builder Connection Merge","id":"CVE-2026-110848"},"packages":[],"prev":{"headline":"n8n before 2.41.4 and 2.42.1 Send-and-Wait HMAC Signature Bypass via Waiting-Webhook","id":"CVE-2026-110846"},"products":["n8n"],"published":"2026-10-14","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-15","vendors":["n8n-io"]},"summary":"Attackers can inject malicious scripts via the Chat Trigger customCss parameter, potentially hijacking sessions of signed-in users on the n8n instance.","url":"https://insights.sbomify.com/CVE-2026-110847/"}